<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>frame</title>

<script type="text/javascript">$(document).ready(function(){
});
</script>
</head>
下面通过switch_to.frame() 方法来进行定位：
多层窗口定位
<body>
<div class="row-fluid">
<div class="span10 well">
<h3>frame</h3>
<iframe id="f1" src="inner.html" width="800",
height="600"></iframe>
</div>
</div>
</body>

</html>